κακοῦργος
Etym. Ε῎ργω
I. "doing ill, mischievous, knavish, villanous", γαστὴρ κακοεργός "importunate", Od.; κακοῦργοι κλῶπες Hdt.; ἀνήρ Soph.; κακουργότατος λόγος Dem.
2. as Subst. "a malefactor, criminal", Thuc., etc.: esp. "a thief, robber", Dem.
II. "doing harm, hurtful", c. gen., κ. εἶναί τινος to hurt any one, Xen.